DISPLAY DEVICE INCLUDING A REFERENCE VOLTAGE GENERATING UNIT, A GAMMA VOLTAGE GENERATING DEVICE, AND A GAMMA VOLTAGE GENERATING METHOD

摘要

PURPOSE: A display device, a gamma voltage generating device, and a gamma voltage generating method improve the image quality characteristics of the display device by connecting a reference voltage and a base voltage to an ELVDD voltage.;CONSTITUTION: A voltage difference generating unit (510) includes multiple resistors connected in series between a reference voltage and a ground voltage. A voltage difference selecting unit (520) selects and outputs a voltage corresponding to a voltage difference between a first power voltage and a first reference voltage among multiple distribution voltages distributed to the resistors. A reference voltage output unit (530) outputs a differential value between a second power voltage and the voltage outputted from the voltage difference selecting unit as a second reference voltage.;COPYRIGHT KIPO 2013;[Reference numerals] (520) Voltage difference selecting unit